PASCO ME-6992B Advanced Structures Set - Manual (Page 24)

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A d v a n c e d S t r u c t u r e s S e t T o w e r C r a n e
20 012-12719B
Tower Crane: Details
Force Platform
The Tower Crane is shown with #1 I-beam members at the bottom of the base. They are needed only when the
structure is used with a Force Platform and the ME-6988 Force Platform Structures Bracket.
The Force Platform is supported by four individual Load Cells that combine to measure the total vertical force on
the platform. The ME-6988 Force Platform Structures Bracket is needed to attach the I-beam members of the
Tower Crane to the Force Platform.
Suggestions
The drawing shows the supporting cords attached to the front most cross beam of the long end of the boom. If the
support cords are attached closer to the tower, as shown in the photograph above, how does that affect the ten-
sion?
The answer is not obvious because although the lever arm is shorter, the angle that the support cords make with
the boom is larger.
What is the optimal distance that minimizes the tension?
Extra Equipment Model
Hooked Mass Set SE-8759
Force Platform PS-2141 or CI-6461
Force Platform Structures Bracket ME-6988
Structures
Bracket
Force
Platform